Record controlled printing machine with checking device to control accumulator entries



Jan. 2, 1951 Filed Jan. 22, 1948 J. E. DAYGER EI'AL RECORD CONTROLLEDPRINTING MACHINE WITH CHECKING DEVICE T0 CONTROL ACCUIULATOR ENTRIES 8Sheets-Sheet 1 FIG! - 'INVENTORS JO/VAS 5 DA V66 2 B ASA N. MILLER Jan.2, 1951 J. RECORD CONTROLLED DEVICE T0 CONTROL ACCUMULATOR ENTRIES 8Sheets-Sheet 2 Filed Jan. 22, 1948 E. DAYGER EI'AL PRINTING MACHINE WITHCHECKING J. E. bAYGER EI'AL 2,536,915

RECORD CONTROLLED PRINTING MACHINE WITH CHECKING DEVICE TO CONTROLACCUHULATOR ENTRIES Filed Jan. 22, 1948 8 Sheets-Sheet 3 Jan. 2, 1951FIG.4

FIG. 3

INTERNATIONAL CORPORATION BROADWAY, NEW YORK INDEX ,1 90115] PAY :1: (isivznoumz-- Tmst or I v a l. Q J INVENTORS JONAS E DAYGER ASA N MILLERDAYGER EI'AL 2,536,915

J. E. RECORD CONTROLLED PRINTING MACHINE WITH CHECKING DEVICE TO CONTROLACCUIULATOR ENTRIES Filed Jan. 22, 1948 8 Sheets-Sheet 4 Jan. 2, 1951 msuznnwv ATTORNE Jan. 2, 1951 J. E.'DAYGER ETAL 2,536,915

RECORD CONTROLLED PRINTING CHINE IITH CHECKING osvxcz T0 con-mm.ACCUIULA'I'OR ENTRIES Filed Jan. 22, 1948 8 Sheets-Sheet 5 Jan. 2, 1951J. a DAYGER ETAL\ 2,536,915

RECORD CONTROLLED PRINTING IACHINE WITH CHECKING DEVICE TO CONTROLACCUIULATOR ENTRIES Filed Jan. 22, 1948 8 Sheets-Sheet 6 FIG.7'

FIG.8'

' INVENTORS JONAS .5 DA YGER ASA N. MILLER Jan. ,2, 1951 J. E DAYGERE'I'AL RECORD CONTROLLED PRINTING IIACHINE WITH CHECKING DEVICE TOCONTROL ACCUIULA'I'OR ENTRIES Filed Jan. 22, 1948 8 Sheets-Sheet 7 FIG.9

JONAS E. 0/7 YGER BY ASA N MILLER Patented Jan. 2, 1951 RECORDCONTROLLED PRINTING MACHINE WITH CHECKING DEVICE TO CONTROL ACCUMULATOR-ENTRIES Jonas E. Dayger, Binghamton, N. Y., and An N. Miller, Hallstead,Pa., assignors to International Business Machines Corporation, New York,N. Y., a corporation of New York Application January 22, 1948, SerialNo. 3,696

4 Claims. (Cl. 235-6137) This invention relates to record controlledmachines and more particularly to machines of the type capable ofsensing perforated records, interpreting the meaning of theperforations, controlling the operation of printing mechanism to printthe amounts represented by the perforations on the records, and forcontrolling the entry of the amounts in the accumulator mechanism.

Machines of the above type have been utilized for printing on theperforated records to form checks issued for payment of some monetarytransaction. It is very desirable that the amounts be printed in thechecks at two places,

one by protective type, that is, pin-point type used commercially;nevertheless, any single instance of improper printing should be guardedagainst, how ever rare its occurrence.

Such improper operations may result from wear of parts, dust, change inadjustment of parts, and the signaling to the user of such a change isan indication of a requirement of service for such machines to preventrepetition of'improper printing.

The principal object of the present invention is to provide a checkingarrangement for the above type of machine which checks the digitpositions of the two sets of type bars against a digit storage meanswhich is set up independently of the type bars, and upon a determinationthat both sets'of type bars are set at corresponding digit positions toeflect an entry in an accumulator under control of said digit storagemeans.

It is also an object oi! the present invention to provide a digitstorage means which functions first as a checking device for the twosets of type bars, and then functions again as a means for effectin anentry in an accumulator.

It is a still further object of the invent on to i digit representationall around, then utilize such storage means to eitect an entry in anaccumulator.

A further object of the invention is to devise means to detect thepresence o1 a blank, or unpunched column of a card, and to suspendprinting on a card upon such eventuality.

A still further object of the invention is to include means whichdetects the improper positioning of a type bar of an order in whichanintermediate zero should be printed, instead of an or blank in case itshould not go to 0 or the proper digit position.

A still further object of the invention is to include an accumulatorwhich will accumulate the values represented upon the cards as long asthe two sets of type bars correspond to the digit settings of thestorage means, and to cause the printing of the total upon a speciallydesignated card which passes through the machine.

A general object of the invention is to include a control of theaccumulator and printing means which prints from the type bars upon thecards so that in the event that a type bar, of any order, in either ofthe two sets is im properly set, and does not correspond to the digitsetting of the digit storage means, such control will be effective toprevent an entry in the accumulator, and suppress the printingoperation.

A still further object of the invention is toarrange the settabledevices for the storage means and the type members so that they areconcurrently and difl'erentially set during digital index times and topresumably coinciding digital positions; to provide contact devicesclosed by each type member and a readout set by the related orders. ofthe storage means; and the provision of means to compare in each orderand after every setting the setting of the contact devices and therelated orders of the readout.

A still further object, related to the specific manner of eifecting acomparison, is to effect, upon finding a coincidence in the setting ofthe contact devices and readout an impression from said type members,and to eil'ect, under control of said digit storage means, the operationof an entry contro means for an accumulator.

Other objects of the invention will be pointed out in the followingdescription and claims and illustrated in the accompanying drawings.which 3 disclose, by way of example, the principle of the invention andthe best mode, which has been contemplated, of applying that principle.

In tie drawings:

Fig. is a central sectional view of the machine in which the presentinvention is incorporated.

Fig. 2 is a side elevational view partly in section taken at one side ofthe machine.

Fig. 3 shows an interpreted card.

Fig. 4 is a view showing a contact operating mechanism operated by thestopping of a type bar.

Fig. 5 is a view showing one order of an accumulator element of a formpreferably employed in connection with the present invention.

Fig. 6 is a timing diagram.

Fig. 7 is a side elevational view showing the driving mechanism for theimpulse emitters and cam contacts.

Fig. 8 is an end view taken in the line 3-8 of Fig. '7.

Figs. 9 and 9a Joined together with Fig. 9 on top comprise a wiringdiagram of the machine.

Fig. 10 is a wiring diagram representing a modification of the wiring.

' The present invention is incorporated in a machine which is shown incomplete detail in the patents to G. F. Daly, No. 1,946,900 and R. E.Page, No. 2,019,869 to which reference may be had for an understandingof the details of construction of the illustrative machine.

CARD Fummo MECHANISM In more detail Ill (Fig. 2) represents the maindrive shaft of the machine. This may be driven in any suitable manner asby an electric motor through belt I l rotating a pulley attached toshaft l0.

From shaft III a worm l3 (Fig. 2) drives worm wheel l4 secured to ashaft I! to which is also secured a box cam IS. A pivoted cam followerarm I! has a roller II at one end riding in the cam groove and at theother has a connection to an arm l9 through adjustable pitman 29.

Arm I9 is secured to a shaft 2| having arms 22 (see Fig. l) in pin andslot engagement with a card picker 23 mounted for reciprocation in theframe of the machine. This reciprocating picker mechanism is adapted toadvance one record card at a time from the supply stack or magazine 24.

Through gears 25 shown in Fig. 2, shaft ill drives a parallel shaft 26which has threaded worm sections 21 meshing with worm gears 28 securedto feed roller shafts 29 to drive feed rollers 30 (Fig. 1) constantly.The card which is advanced by the picker 23 passes into the bite of thefirst pair of feed rollers 30 to the left in Fig. 1 and is subsequentlyguided to the analyzing or perforation reading devices which comprisebrushes 3| and a contact roller 32. These brushes and contact roller areof conventional structure such as is commonly used in electricallycontrolled tabulating machines.

After passing the analyzing brushes 3| each card passes to the secondpair of feed rollers 30 which advance said card to a pair ofintermittently driven rollers comprising upper spring-pressed rollers 33and lower rollers 34 which engage the edge of the card. These rollers 33and 34 advance the card to printing position at which time theymomentarily pause in their rotation to stop the feeding of the card topermit printing on the card in accordance with the preceding analysis.

This interruption in the advance of the card is accomplished as follows:Rollers 34 are secured to a shaft 35 (Fig. 1) journaled in the frame ofthe machine and having attached at one end a gear 36 (Fig. 2) meshingwith a gear 31 on shaft 39 on which shaft is also a gear 39 adapted tobe driven by a mutilated gear 49 mounted on the continuously rotatedshaft it.

Thus, during the rotation of shaft I! the sear 40 will pick up gear 39to advance each card to printing position, whereupon, at this time, thetoothless portion of gear 40 moves into locking engagement with gear 39.After printing has been effected, gear 39 is again engaged for rotationand the card is fed forward to a conveying means (Fig. 1) comprisingrollers 4| and tracks 42 which convey the card to a suitable stacker 43.The shafts upon which rollers 4i are secured are adapted to becontinually driven by the gear connections 44 (Fig. 2) to the shaft 29.

It should be mentioned that a conventional type of card lever CL(Fig. 1) is arranged between the sets of rollers 30 for closing cardlever contacts cm. This card lever is operated by each card to close theCM contacts according to the timing shown in Fig. 6.

Psm rmo Mrcnllmsu plurality of type bars 45 (Fig. 1) is provided. All.

of these bars are mounted for reciprocation in the frame of the machineand each has a connection through a spring-pressed pawl 45 to acrosshead 41 which cause each type bar to move with the crosshead in itsleftward movement. Thus, in Fig. 1, upon movement of crosshead 41 to theleft, the pawls 46, through frictional engagement with bars 45 will movethe type bars concurrently in the same direction.

The bars may be arrested at any point in their travel, and subsequentlythe pawls 49 will disengage from, and permit the further movement of thecrosshead 41. Upon the reverse movement of crosshead 41 the shouldersI35 (Fig. 4) of the bars 45 will be engaged thereby to positively movethe bars to restored position. For reciprocating the crosshead 41 thefollowing mechanism is provided.

As shown in Fig. 2 the crosshead 41 is connected at its ends to blocks49 slidable upon rods 49 and having pivoted link connections 50 to afollower arm 5| pivoted at 52. Arm II has a roller 53 cooperating withthe cam groove of a box cam 54 mounted on a shaft 55 connected throughworm gear 56 and worm 51 to the constantly running shaft H). Thearrangement and timing of the parts is such that the type bars 45 areadvanced synchronously with the movement of a card past the analyzing orsensing brushes II.

If a perforation at, say, the 5 position on the card is under thesensing brushes, the corresponding type representing 5 will be at theprinting line. The establishment of an electric circuit through theindex point perforations by the brush sensing one column is adapted bycircuits to be described to energize a magnet 39 (Fig. 1).

There are a number of these magnets 59, each magnet being related to acorresponding type bar 45 and card column. The energization of anymagnet is adapted to release a pawl device I! through a wire 6| andlatch 92 and allow it to engage one of the ratchet teeth on the bar 45.After pawl 59 has engaged the teeth 99, further movement of the type bar43 to the left in Fig. 1 is prevented. As stated, the type bars 45 arepositioned during a passage of a card past the brushes and subsequentlythese type bars are held during the period that a card passes from theanalyzing station to printing position and during the printingoperation. After the printing operation, pawls 89 and latches 82 arepositively restored in the following manner.

Secured toshaft 55 is a cam 88 (Fig. 1) which cooperates with andactuates a follower arm 84 pressed upwardly by a spring 85 actingthrough an arm 88 on shaft 81. The shaft 81 has secured thereto arms 88which carry a restoring plate 88. arms 18 pivoted to arms 88 carry arestoring plate 1|. By this construction cam 88 is adapted to move plate89 to the left to restore pawls 58 and plate" is moved upwardly torestore latches 8! and their connected wires 8|.

The printing operation about to be described is under the control of aprint magnet 88 which will be explained vlater on.

For each type bar 45 there is an individual hammer 12 which is adaptedto strike the particular type 13 positioned at the printing line on thetype bar. The hammers are pivotally mounted on a rod 14 carried by a bar15 and depend for their actuation upon movement of said bar. The bar 15is pivoted on the frame of the machine by plntles coaxial with rod 14and has springs 18 connected thereto for biasing the bar in a clockwisedirection in Fig. 1.

To the middle of bar 15 there is pivoted a cam follower arm 11bifurcated to straddle shaft 55 and having a roller 11a in cooperationwith a cam 18. Fixed to one face of the cam 18 is a cam member 18 whichcooperates with a projection 88 of the cam follower arm 11.

v As the cam 18 revolves, by virtue of the shaft 55 being driven in themanner previously described, it cooperates with the arm 11 through itsfollower roller 11a, graduallv retractin the hammers 12 in acounterclockwise direction against the tension of springs 18.

As-the roller 11a leaves the high point of the zcam 18 member 18 willunderlie the projection 88 and upon continued rotation of the cam theprojection 88 drops off the member 18 and the springs 18, thus released,turn the common bar 15 in a clockwise direction to swing the hammers 12against type 13 thus effecting printing.

By circuits to be described later, a timed impulse, conditionallyestablished by the congruity of digit values in the type bars and thedigit storage means, energizes the control magnet 88, previouslvmentioned, which causes armature 88 v to be attracted. The attraction ofthe armature allows an arm latch 81. secured to common bar 15, todisengage from armature latch surface 98. It is this operation thatpermits the common bar "15to rotate clockwise, in the manner previouslyexplained. to swin the hammers 12 against the type 18. Spring 92,confined on one end by stop 85, returns armature 88 to its originalrosition when the magnet 88 becomes deenergized.

Referring to Fig. 1, 8| designates a printing platen iournaled in theframe of the machine and adapted to be rotated by frictional engagementwith the passing card to prevent excessive wear at any one place. Theinking ribbon devi esv are of conventional form and require no detailedwill be suppressed and is explained in the following manner. Thesuppression of the timed impulse prevents energization of magnet 88.Thus, armature 88 remains in engagement at surface 98 with latch arm 81which prevents further cooperation bet-ween follower roller 11a and cam18 as the high point of the cam passes by the follower roller. For thesame reason cooperation is suppressed between cam member 88 and block18; thus common bar 15 will not displace hammers 12 for the particularcycle.

CAM Connors Referring to Figs. 7 and 8 the continually running shaft I8carries a bevel gear 85 meshing with a bevel gear 88 secured to a driveshaft 81. Shaft 91 carries gears which are similar to gears I8 of theLake Patent No. 2,328,653 for driving accumulator elements of No. 2accumulator. From shaft 81 there is a gear driving train 88 to a shaftI88 which is the main accumulator drive shaft for No. ,I accumulatorwhich is used as a digit storage means. Drive shaft I88 drives therotatable brush elements of two emitters EMI and EM2. From each end ofdrive shaft I88 there is a gear drive train I83 to a shaft I82 whichcarries cams for operating the CI cam contacts, and the CB cam contacts.

Durucs'rr PRINTING UPON Cnrcxs In the present machine it is desirable toprint the amount on the card check at two places as shown in Fig. 3. Oneprinting is by pin point.

type which produces an unalterable record. The

Cmzcxmo ron SmUL'rAnroUs Posn'ronmo or TH: Two Sn'rs or TYPE Bans It isdesirable to check the position of the two sets of type bars which printat the two places on the check to ascertain whether the simultaneouspositioning of both sets is effected. This is performed by mechanismshown particularly in Fig. 4 and will be further explained .inconnection with the wiring diagram.

For each type bar of the two sets there is provided a spring urged pawl48 pivotally secured to the crosshead 41 at shaft I58. When pawl 5a isunlatched, due to the energization of magnet 58, it will engage a tooth88 on type bar 45 as the cross head 41 moves to the left. Concurrently,spring urged pawl 48 is moved clockwise by cam surface I88 to cooperatewith plunger I88 which, in turn, actuates a T-shaped lever I84 atsurface I82, the T lever being carried by two levers I and I81 looselymounted on rods I88.

The lever I85 is shaped with an arm to actuate a contact I88a. In thefirst denominational order shown in Fig. 4 the armed lever I85 is at thupper end of the T l ver I84 while in the next denominational order thelever I85 is at the lower end of the T lever and operates a contact I88a. in a lower level (see also Fig. 5 of Patent No. 2,247.914).

This construction is desirable in order to provide for the proper sidespacing of the contacts I88a and the operating mechanism since each issubstantially wider than a type bar 45. The above arrangement isrepeated for the next two adjacent orders of the same set of type bars.Each of 'the five type bars of one-set will cause the contacts "58a andI68b closed by type bars 45 of two sets will close at the same time ifboth type bars are set to the same positions.

Accmmu'rons It is preferable to utilize the type of accumulator fullyshown and described in Patent No. 2,328,653, issued to C. D. Lake etal., granted September '7, 1943, to recieve the values represented upona card if certain conditions have been detected.

Fig. 5 shows one order of this form of accumulator which is similar tothat in the designated patent but shown herein modified to includenecessary changes which will be later explained. Since the detailedconstruction and operation of this accumulator is fully set forth in thepatent, a brief description will suffice.

The pivoted armature H is normally between the cores of the advancemagnet AM and the stop magnet SM and said armature has at its tree end aconnection to a clutch lever I I I. In

. the declutching position of the clutch lever III shown in Fig. thearmature H0 is biased against the core of the SM magnet. Whenever the AMmagnet is energized the armature IIII will take an alternative position,rocking the clutch lever III to a clutching position, the clutch leverIII being held in either clutching or declutching position by aresilient latch member H2.

A feature of the accumulating unit is that the armature H0 will remainbiased by latch member II2 against the AM or SM magnet that lastattracted it. If, at the time, either of such impulses are transmitted,the sensing commutator transmits an impulse to the SM magnet the AM andSM magnets will be concurrently energized and no digit entry will beeilfected. A transmission of a digit impulse to the stop magnet SMconcurrently with the AM advance magnet will not result in the clutchingof an accumulator element. The reason for this is that the force ofattraction exerted by the SM magnet on armature IIO will be greater thanthat exercised by the AM magnet, because of the normal airgap betweenthe armature H0 and the core of the AM magnet.

Clutch lever III is shown in declutching position and when moved to aclutching position it releases a disk H3 for counterclockwise movementand a spring I is now effective to rock clutch pawl H5 into engagementwith a constantly rotating ratchet wheel I I6. As a result of this.clutching operation an accumulator element III is initiated in rotation.The termination of the rotation of the accumulator element is effectedas a result of the energization of the SM stop magnet in enteringvalues, and also by an electrical circuit to be described at the end ofa carry operation. In either case this will rock the clutch lever III todeclutching position.

The accumu ator drive shafts 91 and I00 for accumulators No. I and No. 2correspond to shaft I9 of the aforementioned Patent No. 2,328.653. FromFig. 7 it will be recalled that a bevel gear 95 carried by the maindrive shaft I0 meshes with a bevel gear 95 secured to the aforementioneddrive shaft 01. This constitutes in the present machine the drivingmeans for the accumulator wheels and other parts of the accumulator No.I, which herein is used as a digit storage means. The gear drive for theaccumulator drive shaft I00 was previously explained. Accumulator No. 2is utilized to accumulate amounts represented on the cards.

Associated with each accumulator is an electrical readout which is of aform well known in the art. In general, the readout for each orderconsists of a brush rotatable by the accumulator element to make contactwith a conducting segment and individual digit representin segments. De-

tails of construction of one form of such readout can be found in thepatent to C. D. Lake et al., No. 2,232,006. In the wiring diagram thereadouts are generally designated R0.

The emitters designated EMI and EM! are driven two revolutions for eachmachine cycle. The timing of the effective spots of each emitter isshown in the timing diagram of Fig. 6.

Cmcrn'r DIAGRAM To start the machine in operation the operator closes amain line switch (not shown) to supply current to lines 9i, IOI (Figs.9, 9a) and then depresses a Start Key to complete a circuit from line9|, through start key contacts I22 (Fig. 9), motor relay RI to line IOI.RI closes the Rlua. relay contacts to complete an obvious circuit tomotor M to cause the feeding of cards so that a card lever CL isoperated. The latter closes the CLa contacts to complete an obviouscircuit to R20I relays. R20I closes its stick contacts R20Ia so that ahold circuit extends back through C23 cam contacts to line 9| to holdR20I energized until the end of the cycle (see Fig. 6). R20Ib contactscomplete a first holdin circuit through such contacts R20Ib and stop keycontacts I28 to line 9| to hold the RI relay energized until the end ofthe cycle. A supplemental hold circuit for RIM relay is through the C2 Icontacts toline 0| which open at a certain period in a cycle. If a cardhas been fed in this cycle said first circuit will keep the motor relayRIZI energized and the machine will continue to run.

It will be seen from Fig. 9 that closure of R20Ic card lever contactsconnects the main line side II to a line side I01 so that circuitsconnected to line side I01 depend for their closure upon the continuedclosure of R20Ic card lever contacts.

1. Type bar setting control circuits The circuit for energizing the typebar stopping magnets 50 is from line I01, through circuit breakercontacts CiBI-2 (Fig. 9a), cam contacts CI! which are closed during theanalysis of the X-9 card perforations, contact roller 32, brushes 3| ofthe columns representing the value to be printed, plug connectionsIIILRN, a, b, c transfer contacts now normal, R33, a, b, 0 contacts,closed during analysis of the 1-9 holes, plug connections I05, magnets58. plug connections I 08 to line MI. The R33 relay (Fig. 9) is heldenergized during the time the l-9 holes are analyzed by an obviouscircuit controlled by cam contacts 7 C21. By the differentially timedimpulses transmitted to magnets 58 the type bars are set at desireddigit positions.

2. Circuits for settin storage accumulator N0. 1 to represent and storeup representation of amount on card To start the wheels in rotation animpulse is transmitted to the start magnets AM at the 0 time. Theimpulse circuit is from line I01, through cam contacts CI8 (Fig. 9a)which close at the impulse time, R2l-II relay contacts now closed, Rlla,b. 0 contacts now closed, to the series of start magnets AM for eachorder of the storage accumulator No. I to line IIII. At about the timeCll cam contacts close the R21 relay is energized by a circuit from lineI01, 01 cam contacts (Fig. 9), R2ib transler contacts now normal, C6 camcontacts, R21 relay to line II. 1

To stop the wheels in rotation at their difierential positions toindicate the amount or value represented on the card the followingcircuit is operative:

The differential impulses from the brushes 3| (Fig. 9) are transmittedby plug connections I08, through R21, a, b, c relay contacts, nowtransferred, to stop magnets SM of storage accumulator No. I to line WI.The R21 relay is picked up by the circuit just traced. It should benoted that if a 0 is indicated on a card column both magnets AM, SM willbe energized concurrently, which will prevent the rotation of that.wheel from a 0 position. By these circuits a series of wheels ofstorage accumulator No. I are set up to store and represent by itsassociated readout RO#I the amount on the card which is compared byelectrical comparing circuits with the digit setting of the type bars,

Cracmrs ron Sarrmc Ur TYPE BAR CONTROLLED Commune. RELAYS I are closed,wire I09, normally closed R24-3 relay contacts, type bar contacts IliIiaof each order, to the related pickup or P winding of RI, R3 or R5relays. of each order, to line H. Each coil when energized closes its a.holding contacts to energize the H holding winding which is heldenergized by a circuit from line I0l, through the a contacts, the Hholding winding, and cam contacts C2 to line I01. Cam contacts C2 holdeach RI, R3, R5 relay energized for most of the cycle.

The type bar contacts I581; close at approximately two pointsin'the'cycle arter the print magnet 58 receives an impulse irom theanalyzing brushes. It will be seen from Fig. 6 that the type barcontacts Ina close at times designated 1-9, and 0, but the closure ofthese contacts occurs two points after the corresponding index pointsare analyzed. The delay in closing contacts I68a is due to the time ittakes for the contact operating mechanism to operate. It will also beseen from Fig.6 that the impulses directed to compar ing relays RI, R3,R5 by the 0183-4 circuit breaker contacts occur for the same digits atthe same time contacts I50a close.

In a similar way relays R36, R31, and R38 are energized at differentialtimes through their related contacts I681).

It should also be noted from Fig. 6 that CBI-2 contacts close at thesame times that the corresponding index point positions are analyzed sothat the impulses directed to the AM magnets of the accumulator No.Iwill have caused the accumulator wheels. and the readout RO#I to be at.digit positions before the comparing relays RI, RI and R5 are pickedup.

This circuit extends from line I01, through cam contacts C20, circuitbreaker contacts CB3-l, as before, wire 1, through R2l-2 relay contactsnormally closed, the brush of emitter EMI, the segments thereof,'thetransfer contacts 09 of the R30 relay now in normal position, and,dependent upon the digit setting of a brush in each order of the readoutoi the storage accumulator No. I, an impulse from the emitter EMI istransmitted through the a, b, or 0 contacts of the R29 relay now atnormal position, to the pickup winding of the respective R2, R4, R8relays, to line IOI. The hold circuit for such relays is also throughthe respective hold contacts a and the C2 cam contacts, the same as forthe RI, R3, R5 relays.

The emitter EMI is timed to transmit digit impulses under control of thereadout RO#I which are two points in time after the accumulator wheeland readout brush have been stopped. This delay in transmission ofimpulses makes them coincident in point of time with the transmission 01impulses to the RI, R3, R5 relays. Thus, the impulses are directed tothe R2, R4, R0 relays at the same points in the cycle, and if the digitpositions of the type bar and readout are the same the paired relays RI,R2; R3, R4; and R5, R8 should be energized at the same time.

COMPARING CIRCUIT roa Darecrmc NON-CORRI- SPONDING DIGIT Posrrrons orTYPE Bans AND STORAGE ACCUMULATOR This comparing circuit determineswhether in each order the type bar and readout brush are stopped atcorresponding digit positions which should correspond to the digitrepresenting perforation in acontrolling card column. It will berecalled that upon a coincidence in the digit positions each pair ofrelays, such as RI, R2; R3, R4; and R5, R5 (only three columns beingshown by way of example) will be concurrently energized. If there isconcurrent energization in each order, reflecting the correspondingdigit positions of the type bar and readout brush, then the machine willcontinue its operation, otherwise printing will be prevented by acircuit arrangement now to be described. I

At the end of each cycle, and for a short period at the beginning of thenext cycle, C3 cam contacts (Fig. 9) close to energize the pickupwinding P of the R23 relay by an obvious circuit. The latter closes thehold contacts R2311, thereby energizing the H or holding winding of suchrelay by a circuit from line IOI, through R23H relay coil, R23a relaycontacts, CI cam contacts and C4 cam contacts to line I01. While CIcontacts remain closed during the time that error detecting impulses aretransmitted, the Cl cam are coincident with the CBI-2, CBS-4 impulses.

and coincident with the time of energization of the comparing relaysRIR5. This supplementary shunt circuit around CB50 extends from one sideof CB56, serially through the RI!) transfer contacts, R2b transfercontacts. Rub

- open.

11 transfer contacts, R312 transfer contacts, Rlb transfer contacts,R31b transfer contacts, thence through the Rb transfer contacts, Rtbtransfer contacts, R3812 transfer contacts, to the other side of 085-8.

It will be noted that each set of relays, for example, RI and R3 andR36, if they remain deenergized, keep this part of the holding circuitclosed. If they are energized concurrently this part of the holdingcircuit will also be closed. However, if either one i energizeddissimultaneously and held energized by the aforementioned stick circuitthrough cam contacts C3, this part of the holding circuit will bebroken.

Assuming that the type bars, one from each let, and readout brush ofRO#1 are at the sanie digit positions in each order, when cam contactsCBS-6 open, the holding circuit for the R33 relay will be maintained.However, if any one comparing relay of a group RI, R3, and R33; or,

R3, R4, and R31; or R5, R3, and R33 is energized dissimultaneously theholding circuit will be broken when circuit breaker contacts CBS-3 Theselatter contacts thus provide a series of testing periods after each ofthe possible I01, through C3 cam contacts, R33b relay contacts nowclosed, R330. contacts normally closed, R33b contacts normally closed,R3I relay to line IOI. The R3I relay will close the R3Ia (Fig. 9a)contacts so as to enable the cam contacts CBI3 and C to transmit startimpulses to the AM start magnets of accumulator No. 3 by the followingdescribed circuit. From line I01, through CBI3 circuit breaker contacts,wire II3, cam contacts CI, R3Ia relay contacts now closed, thencethrough the R33e, b, c contacts normally closed, thence through theR33a, b, c contacts now in normal position to the AM or start magnets ofaccumulator No. 3 and to line IOI. Thus, start impulses are directed toeach AM start magnet in all the orders and the wheels will commence toturn. Their differential stop positions are under control of the readoutRO#I of accumulator No. I by circuits now to be described:

when cam contacts C8 (Fig. 9) close, an obvlous circuit will becompleted to the R33, R33,

digit positions of the type bar. If no error in the position of the typebars has been detected, the R33 relay will remain energized.

It will be noted that the holding circuit for the R33 relay is throughthe CI cam contacts and in shunt therewith the c contacts of the RI, R3,R5 and R36, R31, R33 relays, inclusive. The closure of any one of thesec contacts maintains the stick circuit of the R33 relay closed when CIcam contacts open.

The circuit for the latch magnet 33 is from the line 3|, through camcontacts C33 (Fig. 9), RId card lever relay contacts, R33e contactsnormally open, latch magnet 33 to line IOI. Therefore, if there is aconformity in the digit settings of the accumulator readout brushes andthe type bars of both sets the R33 relay will be energized at the timethat 033 cam contacts close; thus printing occurs in the cycle. If,however, the holding circuit for the R33 relay is open at any time whenthe circuit breakers CB34 open, or when cam contacts CI open, the R33erelay contacts will be open at the time that the C33 cam contacts closeto transmit an impulse to the latch magnet 33. Under such conditions,that is, a disconformity in the digit settings of the type bars ofeither set and the related accumulator readout brushes, latch magnet 33will not be energized and printing will be inhibited.

ACCUMULATOR ENTRY If the amount set up in both sets of type barscorresponds to the amount represented on the storage accumulator No. I,the error relay R33 will remain energized and will be utilized as ameans for effecting an entry in accumulator No. 3 under control of theRO#I readout of accumulator No. I. Three orders of each accumulator areshown in the wiring diagram but will, in practice, consist of many moreaccording to the denominational magnitude of the entry. Accumulator No.3 is of the type previously described and is provided with the customarytransfer contacts and associated units transfer circuits so as to effectcarries fromorder to order.

Assuming that no discrepancy has been found, the R33b contacts (Fig. 9)are closed during entry time which follows shortly after card readingtime, and a circuit will be completed from line R30 relays and saidrelays are held during the entry portion of the cycle. The circuit fortransmitting the stop impulses is from the line I01, CBI3 circuitbreaker contacts, wire II8, to the brush of the EM3 emitter, whichengages the contact points thereof at differential times; thence bywires II3 the differentially timed impulses are transmitted through theR30, 0-9 relay contacts now transferred; thence in accordance with thedifferential positions of the brushes of the RO#I readout, selecteddigit representing impulses are transmitted through the transferred R33,0, b, c relay contacts, connecting wires I33, through the R3Ia, b, crelay contacts now transferred, to the SM stop magnets to line IOI. Theimpulses directed to these stop magnets will terminate the differentialrotations of all the wheels and accumulator No. 3 will now have receivedthe amount represented on the card. In successive entries the amountswill be accumulated therein so that at the end of a series of cardinterpreting operations the total amount will be represented onaccumulator No. 3.

In those denominational orders in which the readout brushes RO#I standin the 0 position the impulse from the I5 spot of emitter EM3 coincideswith the start pulse through CH and the corresponding accumulator wheelof accumulator No. 3 remains in its same position.

UNITS CARRY CIRCUIT The accumulator No. 3, being a summary accumulator,is provided with the conventional units carry circuits controlled by thecarry contacts I33, I33 and I shown in Fig. 5. In view of the fact thatsuch units carry circuits controlled by the accumulator wheels are wellknown, it will only be described generally. The carry circuits areoperative during the time that cam contacts C3 (Fig. 9) energize the R33relay. The energizing circuit is from line side I01, C3 cam contacts,R33! relay contacts normally closed, R33 relay, to line IOI.

Referring to Fig. 9a the carry impulse is transmitted by the camcontacts CI3 by a circuit from the line I01, through CBI3, line II 8,cam contacts CI3, R33e relay contacts now closed, and thence through the10 transfer contacts closed by the wheel of the units order, forexample, thence through the R331) relay contacts, to the start magnet AMof the tens order. Carries by carries are effected to the next higherorder, through the 9 transfer contact in the well known manner if thenext higher order wheel should be asaaeis RISET'IING S'roaAor:AccUmJLA'ron No. 1

It is, of course, necessary to condition the machine for the nextmachine operation by resetting the wheels and readout RO#I ofaccumulator No. I after they have been utilizedto efleet the transfer ofan amount in accumulator No. 2. The same impulses which are directed tothe SM stop magnets of accumulator No. 2 under'control of the RO#Ireadout to transfer an amount to accumulator No. 2 are also transmittedto the start magnets AM of accumulator No. I and each accumulator wheelwill be rotated complementally until it is at digit position, at whichtime an impulse is directed to each of the stop magnets SM of theaccumulator No. I.

The impulsing circuit for the AM start magnets of accumulator No. I isfrom the RO#I readout, through the R2$a contacts now transferred,through the R28a, b, c relay contacts now transferred, to each of the AMstart magnets, of the accumulator No. I, to line IllI. When all thewheels are at 0, all of the SM stop magnets are concurrently energizedto declutch the accumulator wheels to retain them at 0 digit position.This impulse circuit is from the wire H8, through the CIG cam contacts,thence by wire I25 through the R2la, b, c relay contacts now in normalposition, to each of the .SM stop magnets of accumulator No. I, to lineIIII.

To'rAr. PRINTING FROM SUMMARY ACCUMULATOR No. 2

It is desirable at times to print the amount accumulated by accumulatorNo. 2 upon a card which is passed through the machine. This card maycomprise the last card in a group and is blank with the exception that aselected column Is punched at the X index point position. From the plugsocket of the brush 3| which senses this particular column a plugconnection I23 is made, as shown in Fig. 9a, to a plug socket connectedthrough CII cam contacts to the pickup coil of C22 relay, the other sidebeing connected to line side IIII. Cam contacts CII are timed to closeat the time the X index point position is being analyzed to the pickupwinding P of the R22 coil to line IIII. The latter closes its a contactsto provide a hold circuit for the holding winding which extends back toline III'I through cam contacts CID.

Referring to Fig. 9, it will be seen that R22 coil opens the R22!interlock relay contacts\to disable the impulse circuit to the carrycontrol magnet R32 and the R221; interlock relay contacts to disable theimpulse circuit to the entry control magnet RSI. When cam contacts 01close an obvious circuit to the R34 total print control relay throughR229 relay contacts will be closed, and the energized R34 relay willclose its a, band c contacts to thereby connect the readout RO#2 ofaccumulator No. 2 to the print magnets 58. The impulse circuit for theprint magnets 58 under control of RO#2 readout is from line side I01,through CBI2 contacts, wire Hi, the brush of emitter EM2, and inaccordance with the position of the brushes on the digit segments of theRO#2 readout selected digit impulses will be transmitted by wires I24,through the Rfla, b, c contacts now transferred, thence through theR33a, b, c relay contacts, closed by energization of the circuit for theR38 relay previously described, plug connections I ll, print magnets 58,plug connections I III, to line side IIII. Impulsing the print magnets58 will, in the same manner as if they were impulsed under control ofthe card, cause differential positioning of the type bars to print thetotal amount standing on the accumulator on the card.

It should be noted that the R33 relay is picked up by the C21 camcontacts after the '0 impulse is directed by emitter EM2 so, therefore,for those left-hand columns of the readout in which a '0 is represented,the associated type bars will go to their extreme left positions and atsuch positions an asterisk type is installed to print this character incorresponding columns. However, in intermediate zero digit representingcolumns zeros will be automatically printed by the zero print controlshown in detail in the patent to $3155. Page, No. 2,019,869, patentedNovember 5, Rnssrrmo or AcctmULAron N0. 2

The accumulator may also be reset in the same cycle in which the totalis printed, and the reset operation is under control of an x perforationwhich is preferably in an adjacent column of a card. The analyzing brushII which senses such X perforation is not shown but has a plugconnection I26 (Fig. 9a) which picks up the RH relay through camcontacts CI2, the duowound relay being held energized through the R2 Iarelay contacts and CI! cam contacts. The R2I relay transfers the RM brelay contacts (Fig. 9) so that durin the closure of cam contacts C1 theR25 relay will be energized, which latter transfers its a, b, 0 contactsin Fig. 9a.. Therefore, the same digit impulses which energize the printmagnets 58 are directed through such contacts and through the normallyclosed R32a, b, c relay contacts to the AM start magnets of accumulatorNo. 2. Each accumulator element will be given a complementary rotationto bring it from its digit position to 0. The termination of therotation of the accumulator elements at 0 is provided by a circuit fromline I II, cam contacts C", the R25d relay contacts, through the R3Ia,b, c relay contacts now in normal position, SM stop magnets ofaccumulator No. 2, to line IIII.

MrANs ron DETECTING PASSAGE or BLANK CARDS THROUGH rm: MACHINE ANDPREVENTING or PRINTING ALL AnoUN'rs THEREON To prevent printing on acard when the amount field is blank .or represents 0 in all columns, thefollowing arrangement is employed:

It will be seen from Fig. 9' that the cam contacts CI are shunted by thec and 11 contacts of the RI, R3 and R6 relays, and the d contacts of theR36, R31 and R38 relays. It is evident that if .none of the columns isperforated or represents 0 none of these contacts will be closed whencam contacts CI open. Therefore, the holding circuit of the R23 relaywill be open at this time. This will cause the latch magnet ll to remaindeenergized and printing will be prevented.

- However, in taking a total it was stated that the card was blank inthese columns and to prevent the suppression of printing which would benormally effected by the circuit just described, the R25 relay, which isconnected in parallel with relay R22, is provided with contacts R23!)(Fig. 9) which also shunt the CLcam contacts. Therefore, when such camcontacts are open the holding circuit for the R23 relay will be held bythe Rub relay contacts and printing of the total will be carried out inthe previously described manner.

Monrrrcs'rron v Fig. 10 represents a modification to the wiring diagramto eflect another desirable checking function.

The circuit is slightly diilerent for detection of blank columns of acard passing through the machine. If all of the columns are blank theholding circuit for R23 relay opens when Cl cam contacts open at 145. Itwill be observed that the holding circuit for R23H is by a wire I26through the normally closed relay contacts Rld, R3d, R541, and open atthe latter contacts if a card column is blank, and since these contactsare not connected to line side llll the holding circuit for R23 openswhen Cl cam contacts open, and printing will be prevented.

The modified wiring diagram serves to detect the positioning of a typebar which is at the right of the significant digit of the highestdenominational order to an asterisk printing position instead of a zerodigit position. This may come about due to improper adjustment of partsso that a type bar goes beyond 0 to the position.

If all of the type bars go to a digit position 1-9 or 0, a hold circuitfor R23H will be completed after CI cam contacts open which extends fromR23H, wire I26, Rid contacts now transferred, and then serially throughthe following closed contacts Rlc, R3611, R3c, Rlld, R50, R3311, C4 camcontact to line I01. If a type bar goes to an position its contacts IBM,or l68b will not be closed; therefore one of the above relay contactswill be open and R23 will deenergize after Ci opens. In the mannerpreviously explained printing from this card will be suppressed.

While there have been shown and described and pointed out thefundamental novel features of the invention, it will be understood thatvarious omissions and substitutions and changes in the form and detailsof the device illustrated and in its operation may be made by thoseskilled in the art without departing from the spirit of the invention.It is the intention, therefore, to be limited only as indicated by thescope of the following claims:

What is claimed is:

i. In a machine of the class described, the combination oi anaccumulator, an entry means therefor, two sets of type bars,'type barpositioning means for each set, digit storage means including a digitreadout means positioned thereby to represent any of the digit positions0-9, means for reading out said readout means twice, once fordetermining its digit position and second for controlling saidaccumulator entry means, digit storage setup means, means for analyzinga record representing a value, means under control of said analyzingmeans to control said type bar positioning means to effect adifferential positioning of the two sets of type bars to select type fortwice printing the value, means under control of said analyzing means tocontrol said digit storage setup means to set up said digit storagemeans to represent by its readout means the value represented on therecord, comparing means controlled by said readout means when it isfirst read out and both sets of type bars for comparing the digitposition of a type bar in each set with the digit position of thereadout means of the same order, means controlled by said comparingmeans to render said readout means effective when it is readout thesecond time for causing an accumulator entry when the digit readoutmeans and both sets of type bars have corresponding digit positions andsaid readout means ineifective for an accumulator entry when the digitreadout means and any type bar of either set have non-correspondingdigit positions in any order.

2. In a record controlled machine, printing means including an amountmanifesting means, differentially settable digital type members for aplurality of orders, differentially settable digital storage means for acorresponding plurality of orders, said storage means including in eachorder an electrical readout set thereby to corresponding digitalpositions, record analyzing means, means under control of said analyzingmeans to concurrently and differentially set said storage means and saidtype members during digital index times to presumably coinciding digitalpositions, individual contact devices associated with the respectiveones of said type members and each adapted to be closed by its relatedtype member at the index time when the latter assumes its differentiallyset digital positions, means under control of said individual contactdevices and the orders of the readout to compare, independently for eacnorder, after every digital index time, the coincidence or lack ofcoincidence of digital settings of the contact devices pertaining tosaid type members and the related orders of the readout, means fortransferring the digital amount represented on said readout to saidamount manifesting means, and means controlled by said comparing means,on finding a coincidence in the setting of the contact devices andrelated orders of said readout in all orders thereof, for taking animpression from said typemembers and for efiecting an operation of saidamount transferring means.

'3. In a record controlled machine, printing means including anaccumulator, differentially settable digital type members for aplurality of orders, differentially settable digital storage means for acorresponding plurality of orders, said storage means including in eachorder an electrical readout set thereby to corresponding digitpositions, record analyzing means, means under control of said analyzingmeans to concurrently and differentially set said storage means and saidtype members during digital index times to presumably coinciding digitalpositions, individual contact devices associated with the respectiveones of said type members and each adapted to be closed by its relatedtype member at the index time when the latter assumes its differentiallyset digital positions, means to compare, independently for each order,after every digital index time, the coincidence or lack of coincidenceof digital setting of the contact devices pertaining to said typemembers and the related orders of the readout, means for transferringthe digital amount represented on said readout to said accumulator,means controlled by said comparing means, on finding a coincidence inthe setting of the contact devices and related orders of said readout inall orders thereof, for taking an impression from said type members andfor effecting an operation of said transferring means.

4. In a record controlled machine, printing means includingdiflerentially settable digital type members for a. plurality oforders,.diflerentially settable digital-storage means for a.corresponding plurality of orders settable independently of the typemembers, said storage means including in each order an electricalreadout set thereby to corresponding digit positions, record analyzingmeans, means under control of said analyzing means to concurrently anddifierentially set said storage means and said type members duringdigital index times to presumably coinciding digital positions,individual contact devices associated with the respective ones of saidtype members and each adapted to be closed by its related type member atthe index time when the latter assumes its diflerentially set digitalpositions, electroresponsive means for each order of said readout andadapted under control of the readout order to tak a setting in eachorder at the index time the related type member assumes its :5

differentially set digital position, other electro-' responsive meansfor each order of said type member adapted under control of saidindividual contact devices to take a setting at the index time said typemember assumes its diilerentially set digital position, means tocompare, independently for each order, after every digital index time,the coincidence or lack of coincidence of digital setting of theelectroresponsive means pertaining to said type members and the relatedorders of the readout, means for reading out an amount under control ofsaid readout, means controlled by said comparing means, on finding acoincidence in the setting of the electroresponsive means in all ordersthereof, for taking an impression from said type members and for causingan operation of the reading out means, and means under control of saidelectrical readout for resetting said storage means to normal after thecomparing operation.

JONAS E. DAYGER.

ASA N. MILLER.

REFERENCES CITED UNITED STATES PATENTS Name Date Bryce Mar. 7, 1944Number

